Whole-genome methylation profiling from PBMCs in acute-exacerbation COPD patients with good and poor responses to corticosteroid treatment.

Abstract:

:Identifying heterogeneity in chronic obstructive pulmonary disease (COPD) phenotypes is important for the development of personalized medicine. Genome-wide analysis was used to compare the methylation levels of peripheral blood mononuclear cell (PBMC) samples from 24 acute-exacerbation (AE) COPD patients with good/poor response to corticosteroid therapy and 12 non-COPD controls. Pyrosequencing was employed to validate the genome-wide analysis. In the dataset specific to COPD patients with a good response, enrichment was identified for the following: genes in the Ubl conjugation pathway, nicotinamide nucleotide metabolism, the alkaloid metabolic process, and regulation of the glucose metabolic process. Validation results confirmed CpG sites in PRKAG2 with different methylation levels in COPD patients and normal subjects. The CpG sites of ALOX5AP were specifically associated with a good response. The results suggested that a good response to corticosteroid treatment for AE-COPD should be considered a distinct subtype according to the putative epigenetic mechanism.

journal_name

Genomics

journal_title

Genomics

authors

Lee SW,Hwang HH,Hsu PW,Chuang TY,Liu CW,Wu LS

doi

10.1016/j.ygeno.2018.09.010

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

1381-1386

issue

6

eissn

0888-7543

issn

1089-8646

pii

S0888-7543(18)30338-0

journal_volume

111

pub_type

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